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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
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package jdk.dio.atcmd;

import java.nio.channels.ByteChannel;

/**
 * The {@code DataConnection} interface provides methods for reading and writing to a data
 * connection opened by issuing an AT command (e.g. {@code ATD}).
 * @since 1.0
 */
public interface DataConnection extends ByteChannel {

    /**
     * Returns the {@code ATDevice} this data connection has been opened with.
     * <p />
     * The returned object may be an instance of {@link ATModem ATModem},
     * allowing for controlling the modem signals; in case of a virtual
     * channel open over a multiplexing protocol, this {@code ATModem} instance may
     * be specific to that channel and may allow
     * for controlling the virtual modem signals associated to that virtual channel.
     *
     * @return the {@code ATDevice} this data connection has been opened with.
     */
    ATDevice getDevice();
}
